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git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@70 7ec92016-0320-0410-acc4-a06ded1c099a
This commit is contained in:
tslettebo 2002-10-13 09:38:20 +00:00
parent 52020f94e0
commit 08bd05c8c4
27 changed files with 2717 additions and 1276 deletions
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58
Borland/TypeManip.h
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@ -143,32 +143,64 @@ namespace Loki
static const bool sameType = true;
};
} // namespace Loki
////////////////////////////////////////////////////////////////////////////////
// macro SUPERSUBCLASS
// Invocation: SUPERSUBCLASS(B, D) where B and D are types.
// Returns true if B is a public base of D, or if B and D are aliases of the
// class template SuperSubclass
// Invocation: SuperSubclass<B, D>::value where B and D are types.
// Returns true if B is a public base of D, or if B and D are aliases of the
// same type.
//
// Caveat: might not work if T and U are in a private inheritance hierarchy.
////////////////////////////////////////////////////////////////////////////////
#define SUPERSUBCLASS(T, U) \
(::Loki::Conversion<const volatile U *, const volatile T *>::exists && \
!::Loki::Conversion<const volatile T *, const volatile void *>::sameType)
template <class T, class U>
struct SuperSubclass
{
enum { value = (::Loki::Conversion<const volatile U*, const volatile T*>::exists &&
!::Loki::Conversion<const volatile T*, const volatile void*>::sameType) };
};
////////////////////////////////////////////////////////////////////////////////
// macro SUPERSUBCLASS
// Invocation: SUPERSUBCLASS(B, D) where B and D are types.
// class template SuperSubclassStrict
// Invocation: SuperSubclassStrict<B, D>::value where B and D are types.
// Returns true if B is a public base of D.
//
// Caveat: might not work if T and U are in a private inheritance hierarchy.
////////////////////////////////////////////////////////////////////////////////
template<class T,class U>
struct SuperSubclassStrict
{
enum { value = (::Loki::Conversion<const volatile U*, const volatile T*>::exists &&
!::Loki::Conversion<const volatile T*, const volatile void*>::sameType &&
!::Loki::Conversion<const volatile T*, const volatile U*>::sameType) };
};
} // namespace Loki
////////////////////////////////////////////////////////////////////////////////
// macro SUPERSUBCLASS
// Invocation: SUPERSUBCLASS(B, D) where B and D are types.
// Returns true if B is a public base of D, or if B and D are aliases of the
// same type.
//
// Caveat: might not work if T and U are in a private inheritance hierarchy.
// Deprecated: Use SuperSubclass class template instead.
////////////////////////////////////////////////////////////////////////////////
#define SUPERSUBCLASS(T, U) \
::Loki::SuperSubclass<T,U>::value
////////////////////////////////////////////////////////////////////////////////
// macro SUPERSUBCLASS_STRICT
// Invocation: SUPERSUBCLASS(B, D) where B and D are types.
// Returns true if B is a public base of D.
//
// Caveat: might not work if T and U are in a private inheritance hierarchy.
// Deprecated: Use SuperSubclassStrict class template instead.
////////////////////////////////////////////////////////////////////////////////
#define SUPERSUBCLASS_STRICT(T, U) \
((SUPERSUBCLASS(T, U) && \
!::Loki::Conversion<const volatile T *, const volatile U *>::sameType))
::Loki::SuperSubclassStrict<T,U>::value
////////////////////////////////////////////////////////////////////////////////
// Change log:
@ -179,6 +211,8 @@ namespace Loki
// November 23, 2001: (well it's 12:01 am) fixed bug in SUPERSUBCLASS - added
// the volatile qualifier to be 100% politically correct
// July 16, 2002: Ported by Terje Slettebø and Pavel Vozenilek to BCC 5.6
// October 12, 2002: Added SuperSubclass and SuperSubclassStrict templates.
// The corresponding macros are deprecated. T.S.
////////////////////////////////////////////////////////////////////////////////
#endif // TYPEMANIP_INC_